#pragma once
#include <mutex>
#include <assert.h>
#include "util.hpp"

class user_table
{
private:
    MYSQL *_mysql;     // 数据库操作句柄
    std::mutex _mutex; // 互斥锁保护数据库的访问操作
public:
    user_table(const std::string &host,
               const std::string &username,
               const std::string &password,
               const std::string &dbname,
               uint16_t port = 3306)
    {
        _mysql = mysql_util::mysql_create(host.c_str(), username.c_str(), password.c_str(), dbname.c_str(), port);
        if (_mysql == NULL)
        {
            ELOG("mysql初始化失败！");
            assert(_mysql == NULL);
        }
    }

    ~user_table()
    {
        mysql_util::mysql_destory(_mysql);
        _mysql = NULL;
    }

    // 注册时新增用户
    bool insert(Json::Value &user)
    {
#define INSERT_USER "insert into user values(null,'%s','%s',1000,0,0);"
        char sql[4096] = {0};
        if (user["username"].isNull() || user["password"].isNull())
        {
            DLOG("input password & username");
            return false;
        }
        sprintf(sql, INSERT_USER, user["username"].asCString(), user["password"].asCString());
        bool ret = mysql_util::mysql_exec(_mysql, sql);
        if (ret == false)
        {
            DLOG("insert user info failed!!\n");
            return false;
        }
        return true;
    }
    // 登录验证并返回详细信息
    bool login(Json::Value &user)
    {
        // 以用户名和密码共同作为查询过滤条件，查询到数据则表示用户密码一致，没有信息则用户名密码错误
#define LOGIN_USER "select id , score , total_count, win_count from user where username = '%s' and password = '%s';"
        char sql[4096] = {0};
        sprintf(sql, LOGIN_USER, user["username"].asCString(), user["password"].asCString());

        MYSQL_RES *res = NULL;
        {
            std::unique_lock<std::mutex> lock(_mutex);
            bool ret = mysql_util::mysql_exec(_mysql, sql);
            if (ret == false)
            {
                DLOG("user login failed!!\n");
                return false;
            }
            // 按理说要么有数据，要么没有数据，就算有数据也只能有一条数据
            res = mysql_store_result(_mysql);
            if (res == NULL)
            {
                DLOG("have no login user info!!");
                return false;
            }
        }

        int row_num = mysql_num_rows(res);
        if (row_num != 1)
        {
            DLOG("the user information queried is not unique!!");
            return false;
        }
        MYSQL_ROW row = mysql_fetch_row(res);
        user["id"] = (Json::Int64)std::stol(row[0]);
        user["score"] = (Json::UInt64)std::stol(row[1]);
        user["total_count"] = std::stoi(row[2]);
        user["win_count"] = std::stoi(row[3]);

        mysql_free_result(res);
        return true;
    }
    // 通过用户名获取用户信息
    bool select_by_name(const std::string &name, Json::Value &user)
    {
#define USER_BY_NAME "select id, score, total_count, win_count from user where username = '%s';"
        char sql[4096] = {0};
        sprintf(sql, USER_BY_NAME, name.c_str());

        MYSQL_RES *res = NULL;
        {
            std::unique_lock<std::mutex> lock(_mutex);

            bool ret = mysql_util::mysql_exec(_mysql, sql);
            if (ret == false)
            {
                DLOG("user get user by name failed!!\n");
                return false;
            }
            // 按理说要么有数据，要么没有数据，就算有数据也只能有一条数据
            res = mysql_store_result(_mysql);
            if (res == NULL)
            {
                DLOG("have no user info!!");
                return false;
            }
        }
        int row_num = mysql_num_rows(res);
        if (row_num != 1)
        {
            DLOG("the user information queried is not unique!!");
            return false;
        }
        MYSQL_ROW row = mysql_fetch_row(res);
        user["id"] = (Json::Int64)std::stol(row[0]);
        user["username"] = name;
        user["score"] = (Json::UInt64)std::stol(row[1]);
        user["total_count"] = std::stoi(row[2]);
        user["win_count"] = std::stoi(row[3]);

        mysql_free_result(res);
        return true;
    }

    bool select_by_id(uint64_t id, Json::Value &user) // 通过用户id获取用户信息
    {
#define USER_BY_ID "select username, score, total_count, win_count from user where id = '%ld';"
        char sql[4096] = {0};
        sprintf(sql, USER_BY_ID, id);
        MYSQL_RES *res = NULL;
        {
            std::unique_lock<std::mutex> lock(_mutex);
            bool ret = mysql_util::mysql_exec(_mysql, sql);
            if (ret == false)
            {
                DLOG("user get user by id failed!!\n");
                return false;
            }
            // 按理说要么有数据，要么没有数据，就算有数据也只能有一条数据
            res = mysql_store_result(_mysql);
            if (res == NULL)
            {
                DLOG("have no  user id  info!!");
                return false;
            }
        }

        int row_num = mysql_num_rows(res);
        if (row_num != 1)
        {
            DLOG("the user id information queried is not unique!!");
            return false;
        }
        MYSQL_ROW row = mysql_fetch_row(res);
        user["id"] = (Json::UInt64)id;
        user["username"] = row[0];
        user["score"] = (Json::UInt64)std::stol(row[1]);
        user["total_count"] = std::stoi(row[2]);
        user["win_count"] = std::stoi(row[3]);

        mysql_free_result(res);
        return true;
    }
    // 胜利时天梯分数增加30分，战斗场次增加1，胜利场次增加1
    bool win(uint64_t id)
    {
#define USER_WIN "update user set score = score + 30,total_count = total_count+1,win_count = win_count+1 where id = %ld ;"
        char sql[4096] = {0};
        sprintf(sql, USER_WIN, id);
        bool ret = mysql_util::mysql_exec(_mysql, sql);
        if (ret == false)
        {
            DLOG("update user win info  failed!!\n");
            return false;
        }
        return true;
    }
    // 失败时天梯分数减少30分，战斗场次增加1，其他不变
    bool lose(uint64_t id)
    {
#define USER_LOSE "update user set score = score - 30,total_count = total_count+1 where id = %ld ;"
        char sql[4096] = {0};
        sprintf(sql, USER_LOSE, id);
        bool ret = mysql_util::mysql_exec(_mysql, sql);
        if (ret == false)
        {
            DLOG("update user lose info failed!!\n");
            return false;
        }
        return true;
    }
};
